Alfentanil (INN), anileridine(INN), bezitramide (INN), bromazepam (INN), difenoxin(INN), diphenoxylate (INN), dipipanone(INN), fentanyl (INN), keto bemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine(INN), pethidine intermediate A, phencyc lindine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN) and trimeperidine (INN; salts thereof.
HS codes falls under this category.